Variation of the surface chromatic properties of exposed concrete façades treated with anti-graffiti products

The research analyses the variation of the surface chromatic properties, hue and brightness, sustained by the Portland cement mortar support, due to the application of anti-graffiti protective treatments. The test specimens were digitally analysed using a methodology based on the RGB model, which re...

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Autores principales: Sarabia Castelló,Elena, García Santos,Alfonso
Lenguaje:English
Publicado: Escuela de Construcción Civil, Pontificia Universidad Católica de Chile 2016
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Acceso en línea:http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-915X2016000100005
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spelling oai:scielo:S0718-915X20160001000052016-07-01Variation of the surface chromatic properties of exposed concrete façades treated with anti-graffiti productsSarabia Castelló,ElenaGarcía Santos,Alfonso Mortar graffiti polymers surface properties colour The research analyses the variation of the surface chromatic properties, hue and brightness, sustained by the Portland cement mortar support, due to the application of anti-graffiti protective treatments. The test specimens were digitally analysed using a methodology based on the RGB model, which resulted in the image histogram values of each test specimen treated. The same mortar type without protection was used as the base to quantify the modification. Surface chromatic variation is determined by the type of anti-graffiti treatment used and by the base material on which it is applied. The result is that all the anti-graffiti products studied cause the variation of the supports’ hue and brightness, with the mortar made from grey Portland cement type CEM II/B-M(V-L) 32,5 N (Mb) being the one with less variation of its surface chromatic characteristics once treated. In addition, the fluorinated acrylate component (A4) causes the smalles deviation of the absolute hue and brightness values obtained from the samples analysed.info:eu-repo/semantics/openAccessEscuela de Construcción Civil, Pontificia Universidad Católica de ChileRevista de la construcción v.15 n.1 20162016-04-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-915X2016000100005en10.4067/S0718-915X2016000100005
institution Scielo Chile
collection Scielo Chile
language English
topic Mortar
graffiti
polymers
surface properties
colour
spellingShingle Mortar
graffiti
polymers
surface properties
colour
Sarabia Castelló,Elena
García Santos,Alfonso
Variation of the surface chromatic properties of exposed concrete façades treated with anti-graffiti products
description The research analyses the variation of the surface chromatic properties, hue and brightness, sustained by the Portland cement mortar support, due to the application of anti-graffiti protective treatments. The test specimens were digitally analysed using a methodology based on the RGB model, which resulted in the image histogram values of each test specimen treated. The same mortar type without protection was used as the base to quantify the modification. Surface chromatic variation is determined by the type of anti-graffiti treatment used and by the base material on which it is applied. The result is that all the anti-graffiti products studied cause the variation of the supports’ hue and brightness, with the mortar made from grey Portland cement type CEM II/B-M(V-L) 32,5 N (Mb) being the one with less variation of its surface chromatic characteristics once treated. In addition, the fluorinated acrylate component (A4) causes the smalles deviation of the absolute hue and brightness values obtained from the samples analysed.
author Sarabia Castelló,Elena
García Santos,Alfonso
author_facet Sarabia Castelló,Elena
García Santos,Alfonso
author_sort Sarabia Castelló,Elena
title Variation of the surface chromatic properties of exposed concrete façades treated with anti-graffiti products
title_short Variation of the surface chromatic properties of exposed concrete façades treated with anti-graffiti products
title_full Variation of the surface chromatic properties of exposed concrete façades treated with anti-graffiti products
title_fullStr Variation of the surface chromatic properties of exposed concrete façades treated with anti-graffiti products
title_full_unstemmed Variation of the surface chromatic properties of exposed concrete façades treated with anti-graffiti products
title_sort variation of the surface chromatic properties of exposed concrete façades treated with anti-graffiti products
publisher Escuela de Construcción Civil, Pontificia Universidad Católica de Chile
publishDate 2016
url http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-915X2016000100005
work_keys_str_mv AT sarabiacastelloelena variationofthesurfacechromaticpropertiesofexposedconcretefacadestreatedwithantigraffitiproducts
AT garciasantosalfonso variationofthesurfacechromaticpropertiesofexposedconcretefacadestreatedwithantigraffitiproducts
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